leap year

Summary

leap year is a type of calendar year^[1]. It has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[2]

Key Facts

• leap year's instance of is recorded as type of calendar year^[3].
• leap year's measured physical quantity is recorded as duration^[4].
• leap year is a type of calendar year^[5].
• leap year is part of Julian calendar^[6].
• leap year is part of Gregorian calendar^[7].
• leap year's Commons category is recorded as Leap years^[8].
• leap year is the opposite of common year^[9].
• leap year's topic's main category is recorded as Category:Leap years^[10].
• leap year's Commons gallery is recorded as Leap year^[11].
• leap year's described by source is recorded as Great Soviet Encyclopedia (1926–1947)^[12].
• leap year's described by source is recorded as Small Brockhaus and Efron Encyclopedic Dictionary^[13].
• leap year's described by source is recorded as Encyclopædia Britannica 11th edition^[14].
• leap year's Stack Exchange tag is recorded as https://stackoverflow.com/tags/leap-year^[15].
• leap year's has characteristic is recorded as February 29^[16].
• leap year's duration is recorded as {'unit': 'Q573', 'amount': '+366'}^[17].
• leap year's duration is recorded as {'unit': 'Q25235', 'amount': '+8784'}^[18].
• leap year's duration is recorded as {'unit': 'Q7727', 'amount': '+527040'}^[19].
• leap year's duration is recorded as {'unit': 'Q11574', 'amount': '+31622400'}^[20].
• leap year's event interval is recorded as {'unit': 'Q3186692', 'amount': '+4'}^[21].
• leap year's conversion to SI unit is recorded as {'unit': 'Q11574', 'amount': '+31622400'}^[22].
• leap year's conversion to standard unit is recorded as {'unit': 'Q573', 'amount': '+366'}^[23].
• leap year's has part is recorded as leap year starting on Sunday and ending on Monday^[24].
• leap year's has part is recorded as leap year starting on Monday and ending on Tuesday^[25].
• leap year's has part is recorded as leap year starting on Tuesday and ending on Wednesday^[26].
• leap year's has part is recorded as leap year starting on Wednesday and ending on Thursday^[27].

Body

Definition and Type

leap year's instance of is recorded as type of calendar year^[3]. It is a type of calendar year^[5]. It is the opposite of common year^[9].

Use and Application

Part of include Julian calendar^[6], a solar calendar^[28], founded in -0045^[29] and Gregorian calendar^[7], an arithmetic calendar^[30], founded in 1582^[31].

Why It Matters

leap year has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[2] It is known by 43 alternative names across languages and contexts.^[32]